28654918 has 16 divisors (see below), whose sum is σ = 45017856. Its totient is φ = 13653640.

The previous prime is 28654897. The next prime is 28654919. The reversal of 28654918 is 81945682.

It is a happy number.

It is a super-2 number, since 2×28654918² = 1642208651173448, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28654919) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13305 + ... + 15307.

It is an arithmetic number, because the mean of its divisors is an integer number (2813616).

Almost surely, 2^28654918 is an apocalyptic number.

28654918 is a deficient number, since it is larger than the sum of its proper divisors (16362938).

28654918 is a wasteful number, since it uses less digits than its factorization.

28654918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2339.

The product of its digits is 138240, while the sum is 43.

The square root of 28654918 is about 5353.0288622424. The cubic root of 28654918 is about 306.0081946344.

The spelling of 28654918 in words is "twenty-eight million, six hundred fifty-four thousand, nine hundred eighteen".